她正在做什么?如何表达:A.What is he doing ?B.What is she doing?
He usually waves ___________ goodbye. A. they B. their C. them
Daming often _________ to school at seven o’clock. A. goes B. go C. going
Katie always ___________ early. A. get up B. gets up C. gets on
Dino stood up, but _____ sit down. A. did not B. is not C. do not
He _____ many books yesterday. A. reading B. read C. writing